JP2003126223A - Milk feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a cap from mismounting on a bottle and a milk from leakage, and to prevent faults such as no feeding of the milk by stress deformation of a teat, the milk from leakage or damaged of the teat. SOLUTION: The milk feeder 1 comprises the cap 3 for mounting the teat 4 in the opening of the upper part of the bottle 2. The feeder 1 further comprises an engaging part 11 formed on the inside surface of the cap 3, and an engaging part 7 formed on the outer peripheral surface of the upper part of the bottle 2. The cap 3 is pressed to the bottle 2 to be engaged with the bottle 2, and both the engaging parts 7 and 11 are engaged with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a baby bottle and a cap for covering an upper opening of the bottle.

[0002]

2. Description of the Related Art Conventionally, a baby bottle has been constructed by covering a bottle made of glass, resin or the like with a cap having a nipple attached to the opening of the bottle. The structure for attaching the cap to the bottle is configured such that a female screw portion formed on the inner peripheral surface of the cap is screwed into a male screw portion formed on the outer periphery of the bottle upper portion, that is, the cap is screwed and attached to the upper portion of the bottle. . In addition, a gap is formed between the cap and the opening of the bottle, and a flange portion (23 shown in FIG. 3) formed at the lower portion of the nipple is sandwiched in the gap,
The flange is made to function as a seal member, and the bottle is kept sealed by the cap. Further, there is also one in which air introducing means (12 shown in FIG. 3) is formed on the flange portion of the nipple so that air can flow into the bottle and the milk can be smoothly discharged.

[0003]

However, in the cap mounting structure as described above, problems such as milk leakage due to insufficient tightening at the time of mounting and remounting due to poor tightening angle have occurred. Further, in this tightening work, the tightening condition differs depending on the person, and when tightened tightly, the above-mentioned flange portion (23 shown in FIG. 3) is twisted and compressed, and the air introducing means (12 shown in FIG. 3) is compressed. ) May become blocked or deformed, causing problems such as defective milk output and leakage. Also, because it is compressed while receiving stress in the direction of rotation of the cap, due to the twisting of the flange,
The problem of milk leakage easily occurs due to the deterioration of the function as the seal member. In addition, since the female screw is formed inside the cap, it is difficult to clean the cap, which is not preferable in terms of hygiene.

[0004]

The problems to be solved by the present invention are as described above, and the means for solving the problems will be described below. That is, as described in claim 1, which is a baby bottle in which an opening on the upper part of the bottle is covered with a cap for mounting a nipple, the engaging part is formed on the inner surface of the cap, and the outer periphery of the upper part of the bottle is formed. The engaging portion is formed on the surface, the cap is pressed against the bottle and fitted, and both engaging portions are engaged.

According to a second aspect of the present invention, the engaging portion on the inner surface of the cap is a series of annular convex portions, and the engaging portion on the outer peripheral surface of the bottle is a series of annular grooves.

According to a third aspect of the present invention, a set ring is slidably provided on the outer peripheral surface of the cap.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. 1 is an overall perspective view of a baby bottle to which the present invention is applied, FIG. 2 is a sectional view of the same, FIG. 3 is a partial sectional view showing a state of a baby bottle with a cap attached, and FIG. 4B is a view showing a cross section when the cap is pulled up and the cap is attached and detached, FIG. 4B.
[Fig. 6] is a view showing a cross section in a fitted state of a cap in which a set ring is pushed down.

As shown in FIGS. 1 and 2, there is provided a feeding device 1 having a cap 3 for mounting a nipple 4 on an opening at an upper portion of a bottle 2, and an engaging portion 1 is provided on an inner surface of the cap 3.
1 (FIG. 2), an engaging portion 7 (FIG. 2) is formed on the outer peripheral surface of the upper portion of the bottle 2, and the cap 3 is pressed onto the bottle 2 to be fitted thereto. It is configured to be engaged. The details of each unit will be described below.

As shown in FIGS. 2 and 3, the bottle 2 is
The glass bottle 2a has an opening 31 formed on the upper side, and the rubber layer 2b covering the outside of the glass bottle 2a. The glass bottle 2a includes a fitting portion 30 and a body portion 40, and the outer diameter of the fitting portion 30 is smaller than that of the body portion 40. Then, on the outer peripheral surface of the fitting portion 30 (the outer peripheral surface of the upper portion of the bottle 2), engaging portions 7 for engaging with the engaging portions 11 of the cap 3 to be described later are formed in an annular shape or at a plurality of locations. In this embodiment, the shape of the engaging portion 7 is a series of annular grooves having a predetermined depth from the outer peripheral surface. Further, the body 40 is covered with the rubber layer 2b, and when the baby 1 is grasped, a soft touch is given, and the body 40 is easily held because of its slipperiness. In addition to this, even when the bottles 2 are stacked or when the bottles 2 hit an obstacle, the impact is absorbed by the deformation of the rubber layer 2b. As a result, the bottle 2 can be configured to be less likely to be damaged, noise generated by stacking bottles at the time of work such as disinfection can be reduced, and quietness of the work can be improved. Further, even when the bottle 2 is damaged, glass fragments are broken. It is designed to suppress the scattering of. In this embodiment, the glass bottle 2a is described as an embodiment, but a container made of a colorless transparent resin or a colored transparent resin may be used.

As shown in FIGS. 2 and 3, the cap 3
Is a resin cylindrical body made of polypropylene, polyethylene, a copolymer resin, or the like, and the lower opening is a glass bottle 2a.
While fitting the outer periphery of the fitting portion 30 of
The nipple 4 is projected from the upper opening. The inner diameter of the cap 3 is substantially the same as the outer diameter of the fitting portion 30, so that the hermeticity between the cap 3 and the bottle 2 is maintained. In the vicinity of the lower opening, the wall thickness is thinned to increase the inner diameter to facilitate the alignment at the time of mounting to the fitting portion 30 and facilitate elastic deformation. Further, on the inner side surface of the cap 3, the engaging portion 1 is placed at a position corresponding to the engaging portion 7 so as to engage with the engaging portion 7 formed on the fitting portion 30 in a state of being fitted to the bottle 2.
1 is formed. In this embodiment, the shape of the engaging portion 11 is a series of annular convex portions having a predetermined height from the inner side surface. Also, an upper opening is formed by a lip portion 13 formed by bending the upper end of the cap 3 inward so that the lip portion 13 can be fitted into a recess portion between the flange portion 23 of the nipple 4 and the base portion 24. I have to. Also, the cap 3
The outer diameter of the upper end of the
4 is formed to function as positioning when attaching (fitting or screwing) the inner surface of the lower end of the hood 15. By attaching the hood 15 to the cap 3, the nipple 4 is protected and the cleanliness is maintained, and an attachment (when the cap 3 is pressed, the nipple 4 is pressed when the cap 3 is attached to the bottle 2 described later). To prevent touching)). Further, in the mounting work of the cap 3 described later, the cap 3 is pressed while the hood 15 is mounted,
Its upper surface is a horizontal surface so that it can be easily pressed by the palm.

As shown in FIGS. 2 and 3, the nipple 4 is made by molding a synthetic rubber such as natural rubber or silicone rubber, and has elasticity that makes a baby feel comfortable and soft when drinking milk or the like. is doing. A flange portion 23 that engages with the lower surface of the lip portion 13 of the cap 3 is formed at the lower portion of the nipple 4, and the flange portion 23 is sandwiched between the upper edge 32 of the bottle 2 and the lip portion 13. Thus, the airtightness between the cap 3 and the bottle 2 is maintained (functioning as a seal). By attaching the cap 3 to the bottle 2, the flange portion 23 is pressed against the upper surface of the bottle 2 by the lip portion 13 in a certain amount. Further, a rib 27 is provided so as to project downward from the flange portion 23, and the rib 27 is brought into close contact with the inner surface of the bottle 2 (glass bottle 2a), thereby functioning as a seal together with the flange portion 23. A base portion 24 having a large outer diameter is formed above the flange portion 23, and a recess is formed between the base portion 24 and the flange portion 23, and the inner end surface of the lip portion 13 abuts on the recess portion. I have come into contact with them. Further, the air introducing means 12 is formed so as to vertically penetrate the flange portion 23 and the ribs 27. The air introducing means 12 enables the inflow of air into the bottle 2 of the outside air, so that the milk can be smoothly outflowed. I am trying to do it.
With the above configuration, the tip portion 2 of the nipple 4 from below the cap 3
When 6 is inserted and the base portion 24 once passes through the lip portion 13, the flange portion 23 is locked to the lower surface of the lip portion 13 so that the lip portion 13 exists in the concave portion between the base portion 24 and the flange portion 23. Then, the nipple 4 is attached to the cap 3.

Next, the procedure for attaching the cap 3 having the above-described structure will be described. First, in the cap 3,
The nipple 4 is put on and then the hood 15 is put on. Then, the bottle 2 containing the milk is placed on a table or other table, the lower opening of the cap 3 is brought into contact with the upper edge 32 of the fitting portion 30, and the cap 3 is placed on the bottle 2. Let's put it on. In this state, the upper surface of the hood 15 is pushed by the palm of the hand, and when pressed downward, the cap 3 elastically deforms and moves downward, and the engaging portion 11 is inserted into the engaging portion 7. When hooked, the cap 3 is restored from the elastically deformed state to the original state, the cap 3 is fitted to the bottle 2, and the both engaging portions 11 and 7 are engaged. With this engagement, the flange portion 23 is sandwiched between the lip portion 13 of the cap 3 and the upper edge 32 of the bottle 2 and compressed,
As a seal, a sealed state between the bottle 2 and the cap 3 is formed.

As described above, the cap 3 is the bottle 2
Be fitted to. As a result, the phenomenon of "the tightening condition differs depending on the person" in the conventional screw-in mounting structure does not occur, and the above-described flange portion (23 shown in Fig. 3) is not twisted and compressed. The air introduction means (12 shown in FIG. 3) is not clogged or deformed, and problems such as defective milk output and leakage do not occur. Further, since no stress is generated in the rotational direction by the cap on the flange portion (23 shown in FIG. 3), compared to the conventional screw-in mounting structure,
It is possible to prevent the deterioration of the function as the seal member due to the twist. Further, in the structure of the cap 3, since the female screw is not formed, it is easy to wash, which is preferable in hygiene.

Further, the shapes of the engaging portion 11 of the cap 3 and the engaging portion 7 formed in the fitting portion 30 of the bottle 2 are not limited to those in the above-described embodiments, but the concavo-convex relationship between them is reversed. To form a series of annular grooves in the engaging portion 11,
You may form a series of annular convex parts in the engaging part 7. In addition, engagement by combining a plurality of hemispherical convex portions formed on the cap 3 and a plurality of concave portions formed on the fitting portion 30 of the bottle 2, or providing a plurality of convex portions and concave portions on the cap 3, The fitting portion 30 of the bottle 2 may be provided with a concave portion and a convex portion at positions corresponding to this, and the concave portion and the convex portion may be engaged with each other.

Further, in the shape of the tubular body of the cap 3, a plurality of slits (cuts) or strips are formed on the side surface so that the tubular body can be elastically deformed with less stress, and the cap 3 is fitted / removed. It is also possible to adopt a configuration that facilitates the work. Even in the case of this configuration, since the flange portion 23 and the upper edge 32 of the fitting portion 30 are kept in close contact with each other, the flange portion 23 acts as a seal and milk leakage does not occur. The slits can be formed upward from the lower end of the cap 3, or obliquely upward, and further in the horizontal direction. That is, a strip-shaped member is integrally formed with the cap 3. Then, an engaging portion such as a protrusion, a concave portion, or a hole is provided at the end of the strip-shaped portion so that the cap 3 can be locked to the bottle.

Next, another embodiment of the cap 3 will be described. In this embodiment, as shown in FIGS. 4A and 4B, the cylindrical set ring 1 is attached to the outer peripheral surface of the cap 3.
6 is slidably provided. The set ring 16 covers the outer peripheral surface of the cap 3 and firmly holds the engagement between the engaging portion 7 and the engaging portion 11. FIG. 4A shows a cross section when the set ring 16 is pulled up and the cap 3 is attached / detached, and FIG. 3 is a cross-sectional view of the No. 3 in the fitted state. As shown in FIG. 4A, the outer diameter of a part of the upper portion of the cap 3 is increased to form the annular locking protrusion 33, while the inner diameter of a part of the inner surface of the set ring 16 is decreased to reduce the annular shape. The locking convex portion 34 of the
In the state of pulling up, the upper surface of the locking projection 34 comes into contact with (hangs on) the lower surface of the locking projection 33, and the pulling range is restricted. In addition, FIG.
As shown in FIG. 5, the outer diameter of the lower edge of the cap 3 is increased to form the annular locking projection 35, while the inner diameter of the lower edge of the set ring 16 is increased to increase the annular shape on the inner surface of the set ring 16. When the stepped portion 36 is formed and the set ring 16 is pushed in, the stepped portion 36 becomes
And the position where it is pushed in is fixed.

That is, the sliding range of the set ring 16 with respect to the cap 3 is predetermined by the locking projection 33 and the locking projection 34 being locked and the locking projection 35 and the stepped portion 36 being brought into contact with each other. The set ring 16 is restricted to the range, and is not detached from the cap 3 and is handled as one body. Further, as shown in FIG. 4B, when the set ring 16 is pushed in, the locking protrusion 34 is located outside the engaging portion 11, and the engaging portion 11 of the cap 3 is The engagement portion 11 and the fitting portion 3 of the bottle 2 are mounted so that the position is covered (closed) from the outside.
The fitting with the engaging portion 7 configured to be 0 is firmly maintained. Further, when the set ring 16 is pushed in as shown in FIG. 4B, the lower edge of the set ring 16 is arranged below the lower edge of the locking projection 35 of the cap 3. The locking convex portion 35 is prevented from coming off due to being caught by a "thing".

The attachment of the cap 3 to the bottle 2 with the above structure will be described. First, as in the state of FIG. 4A, the set ring 16 is pulled up, and the elasticity of the lower portion of the tubular body of the cap 3 is set. Deformation (opening the opening and fitting part 3
The hood 15 is attached to the stepped portion 38 formed on the cap 3 so that the hood 15 is not disturbed. Then, the bottle 2 containing the milk is placed on a table or other table, the lower opening of the cap 3 is brought into contact with the upper edge 32 of the fitting portion 30, and the cap 3 is placed on the bottle 2. Let's put it on. In this state, the upper surface of the hood 15 is pushed by the palm of the hand, and when pressed downward, the cap 3 elastically deforms and moves downward, and the engaging portion 11 is inserted into the engaging portion 7. When hooked, the cap 3 is restored from the elastically deformed state to the original state, the cap 3 is fitted to the bottle 2, and the both engaging portions 11 and 7 are engaged. With this engagement, the flange portion 23 is sandwiched between the lip portion 13 of the cap 3 and the upper edge 32 of the bottle 2, compressed, and becomes a seal, so that a sealed state between the bottle 2 and the cap 3 is obtained. Is formed. Furthermore, by holding the outer peripheral surface of the set ring 16 and sliding it downward,
Elastic deformation in the direction in which the inner diameter of the cap 3 expands is restricted (the outer peripheral surface at the position of the engaging portion 11 of the cap 3 is pressed), and the fitted state of the cap 3 is reliably maintained. On the other hand, when removing the cap 3, by pulling up the set ring 16, the engaging portion 11 of the cap 3
There is nothing to press the outer peripheral surface at the position of,
The cap 3 can be easily elastically deformed in the direction in which the inner diameter of the cap 3 expands, and the cap 3 can be easily removed.

With the above-mentioned configuration including the set ring 16, the fitted state can be reliably maintained, and the occurrence of problems such as milk leakage due to the cap 3 falling off can be completely prevented.

[0020]

Since the present invention is constructed as described above, it has the following effects. That is, as in claim 1, a baby bottle in which a cap for wearing a nipple is attached to an opening in the upper part of the bottle, wherein an engaging portion is formed on an inner surface of the cap, and an outer peripheral surface of the upper part of the bottle is formed. Since the engaging portion is formed, and the cap is pressed onto the bottle to be fitted and both engaging portions are engaged, "the tightening condition differs depending on the person" in the conventional screw-in mounting structure.
Since such a phenomenon does not occur and the flange portion is not compressed by being twisted, the air introducing means is not blocked or deformed, and problems such as defective milk output and leakage do not occur. In addition, since no stress is generated on the flange in the direction of rotation due to the cap, compared to the conventional screw-in mounting structure,
There is no twist and it is possible to prevent deterioration of the function as a seal member.

Further, as described in claim 2, since the engaging portion on the inner surface of the cap is a series of annular convex portions and the engaging portion on the outer peripheral surface of the bottle upper part is a series of annular grooves, In the structure, since the female screw is not formed, it is easy to wash, which is preferable in hygiene.

Since the set ring is slidably provided on the outer peripheral surface of the cap as described in claim 3, the engaging portion of the cap is mounted (closed) from the outside. It is possible to firmly maintain the fitting between the engaging portion on the inner surface of the cap and the engaging portion on the outer peripheral surface of the bottle upper portion. That is, it is possible to prevent the cap from falling off.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a baby feeding device to which the present invention is applied.

FIG. 2 is a sectional view of the same.

FIG. 3 is a partial cross-sectional view showing a state of a nursing device with a cap attached.

FIG. 4 (a) is a view showing a cross section when the set ring is pulled up and the cap is attached / detached.
[Fig. 6] is a view showing a cross section in a fitted state of a cap in which a set ring is pushed down.

[Explanation of symbols]

1 baby 2 bottles 3 caps 4 nipples 7 Engagement part 11 Engagement part

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tomoyuki Oura             2-4-6 Itoyacho, Chuo-ku, Osaka             Cos Co., Ltd. F-term (reference) 3E084 AA04 AA12 AB01 BA03 CA01                       CB02 DA01 DB13 DB14 FA09                       FC07 FC08 FD04 GA08 GB12                       GB13 GB25 JA02 KB01 LA17                       LB02 LC02 LD30

Claims (3)

[Claims] 1. A baby feeding device in which a cap for wearing a nipple is covered in an opening in an upper portion of a bottle, wherein an engaging portion is formed on an inner side surface of the cap, and an engaging portion is provided on an outer peripheral surface of the upper bottle. And a structure in which the cap is pressed and fitted to the bottle so that both engaging portions are engaged with each other. 2. The feeding portion according to claim 1, wherein the engaging portion on the inner surface of the cap is a series of annular convex portions, and the engaging portion on the outer peripheral surface of the bottle upper portion is a series of annular grooves. vessel. 3. The baby feeding apparatus according to claim 1, wherein a set ring is slidably provided on the outer peripheral surface of the cap.